Detroit ( dih-TROYT, locally also DEE-troyt) is the most populous city in the U.S. state of Michigan. It is situated on the bank of the Detroit River across from the Canadian city of Windsor, Ontario. It is the 26th-most populous city in the United States and the largest U.S. city on the Canada–United States border, with a population of 639,111 at the 2020 census, and an estimated 2025 population of 649,095, its first population increase since 1950. The Metro Detroit area, at over 4.4 million people, is the 14th-largest metropolitan area in the nation and second-largest in the Midwest (after the Chicago metropolitan area). The county seat of Wayne County, Detroit is a significant cultural center known for its contributions to music, art, architecture, and design, in addition to its historical automotive and industrial background.
In 1701, French explorers Antoine de la Mothe Cadillac and Alphonse de Tonty founded Fort Pontchartrain du Détroit. During the late 19th and early 20th centuries, it became an important industrial hub at the center of the Great Lakes region. The city's population rose to be the fourth-largest in the nation by 1920, with the expansion of the automotive industry in the early 20th century. One of its main features, the Detroit River, became the busiest commercial hub in the world. In the mid-20th century, Detroit entered a state of urban decay that has continued to the present, as a result of industrial restructuring, the loss of jobs in the auto industry, and rapid suburbanization. Since reaching a peak of 1.85 million at the 1950 census, Detroit's population has declined by more than 65 percent. In 2013, Detroit became the largest U.S. city to file for bankruptcy, but successfully exited in 2014. In 2025, the U.S. Census Bureau reported that Detroit's population grew for a second consecutive year and led population growth in Michigan for the first time since the 1950s.
Detroit is a port on the Detroit River, one of the four major straits that connect the Great Lakes system to the St. Lawrence Seaway. The city anchors the third-largest regional economy in the Midwest and the 16th-largest in the United States. It is also best known as the center of the U.S. automotive industry, and the "Big Three" auto manufacturers—General Motors, Ford, and Stellantis North America (Chrysler)—are all headquartered in Metro Detroit. Metro Detroit houses the Detroit Metropolitan Airport, one of the most important hub airports in the United States. Detroit and the adjacent Canadian city of Windsor constitute the second-busiest international crossing in North America, after San Diego–Tijuana.
Detroit's culture is marked with diversity, having both local and international influences. Detroit gave rise to the music genres of Motown and techno, and also played an important role in the development of jazz, hip-hop, rock, and punk. As a result of the city's rapid growth in its boom years, Detroit has many globally unique architectural monuments and historic places. Since the 2000s, conservation efforts have managed to save many architectural pieces and achieve several large-scale revitalizations, including the restoration of several historic theaters and entertainment venues, high-rise renovations, new sports stadiums, and a riverfront revitalization project. Detroit is an increasingly popular tourist destination which caters to about 16 million visitors per year. In 2015, Detroit was designated a "City of Design" by UNESCO, the first and only U.S. city to receive this designation.
Detroit is named after the Detroit River, connecting Lake St. Clair with Lake Erie. The name comes from the French language word détroit meaning 'strait' as the city was situated on a narrow north–south passage of water linking the two lakes. The river was known as le détroit du Lac Érié in the French language, which means 'the strait of Lake Erie'. In historical contexts, the strait included Lake St. Clair and the Detroit River.
Throughout its history, Detroit has been known by several nicknames. Its founder, Antoine de la Mothe Cadillac, originally envisioned the settlement as a major city within the Pays d'en Haut, calling it the Paris de la Nouvelle-France, (Paris of New France). As the city evolved into the world's automotive center, "Detroit" became a metonym for the industry itself. Its status as the heart of the automotive world is reflected in the nickname Motor City, while its deep musical legacy is famously celebrated through the moniker Motown.
Other nicknames emerged during the 20th century to reflect different aspects of the city's identity. It became known as the City of Champions in the 1930s following a series of sports successes, while the Detroit Red Wings later trademarked the name Hockeytown. In more recent years, it has been called the Renaissance City, a nod to its urban revitalization efforts and the iconic Renaissance Center complex. The city is also frequently referred to as The D, The 313 (its telephone area code), or Rock City, inspired by the Kiss song "Detroit Rock City."
The Detroit River basin was inhabited by Paleo-Indian hunter-gatherers as early as 11,000 years ago, followed by successive ancient cultures, including Woodland mound-building societies. By the time of European contact, the region was a dynamic borderland inhabited by various Iroquoian and Anishinaabe nations. In the Ojibwe language, the area is called Waawiiyaataanong, which translates to "where the river bends" or "where the water curves around".
The first Europeans to explore the Detroit River basin were the members of a French expedition led by explorer Adrien Joliet, brother of Louis Jolliet, in 1669. Joliet was commissioned by Jean Talon, the first Intendant of New France, to lead an official mission to investigate rumors of rich copper deposits around Lake Superior; they traveled down through the Detroit River in September 1669. French Sulpician priests François Dollier de Casson and René de Bréhant de Galinée explored and mapped the region in 1670 for the French Crown, leaving written accounts of the area. The first documented sailing ship navigation on the upper Great Lakes occurred in 1679, when René-Robert Cavelier, Sieur de La Salle sailed Le Griffon up into the Detroit River.
The Cadillac expedition of 1701 was a pivotal event in the history of Detroit, resulting in the establishment of a fortified settlement named Fort Pontchartrain du Detroit on July 24, 1701, and the foundation of the parish of Sainte-Anne de Detroit in the settlement on July 26. Cadillac was authorized by King Louis XIV of France and his minister, Louis Phélypeaux, Comte de Pontchartrain, to further French colonial influence and secure the French trade in the region. He offered free land to French families in Quebec to settle into the region and encouraged the Indigenous tribes to relocate around it. The modern city of Detroit grew out of this 18th-century French settlement.
During the French and Indian War, Fort Pontchartrain was largely unaffected and had not been besieged in the war, though it was a crucial logistic post for the French war effort. Following French defeat and the signing of the Treaty of Paris in 1763, Detroit, together with much of the French territories east of the Mississippi River, was ceded to Great Britain. The Indigenous tribes, stripped of their French allies, faced aggressive British expansion, leading to Pontiac's Rebellion.
Following the acquisition of Detroit, the British sought to mitigate further conflict with Indigenous tribes after Chief Pontiac's failed attempt to seize the settlement in 1763. In the wake of these negotiations, the British issued the Royal Proclamation of 1763, establishing a buffer zone that restricted European settlement south of the Great Lakes and west of the Appalachian Mountains.
The fur trade remained the bedrock of Detroit's economy under British rule, positioning the settlement as a vital conduit for goods moving between Montreal and the expanding western frontier. Both large trading companies and independent merchants moved in to occupy former French trade routes. While the Montreal-based North West Company deployed voyageurs across the region, local independent firms formed the Miamis Company in 1786 as a short-lived conglomerate to pool resources and compete. Meanwhile, the Michilimackinac Company heavily influenced northern supply lines.